A naphthalene based diamide, 3-pyridin-3-yl-N-[5-(3-pyridin-3-yl-acryloylamino)-naphthalen-1-yl]-acrylamide ligand (L) with four dicarboxylates were shown to form Cd/Zn(II) coordination polymers under solvothermal conditions. Three of these coordination polymers (CPs) were found to have 2D-networks, while one of them contains a 3D-network. The Cd(II) centers exhibited bimetallic and trimetallic secondary building units to link the dicarboxylates and ligands. The CPs displayed high luminescence given the presence of electron rich moiety in the ligand. This luminescent property of CPs has been exploited for the detection of nitro aromatics and Fe(III) ions from aqueous solutions of 0.69 μM (0.16 ppm) and 1.29 μM (0.52 ppm) of picric acid and ferric ion, respectively. Further, all the CPs have shown propensity to adsorb dyes such as methylene blue, while eosin-Y is adsorbed by only one of the four CPs. The dye sorption was found to influence the emission profiles in terms of absorption maxima.

中文翻译：

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萘基二酰胺与刚性和柔性二羧酸酯的发光配位聚合物：硝基炸药，Fe（III）离子和染料的传感

萘基二酰胺3-吡啶-3-基-N- [5-（3-吡啶-3-基-丙烯酰氨基）-萘-1-基]-丙烯酰胺配体（L）具有四个二羧酸盐的溶液显示在溶剂热条件下形成Cd / Zn（II）配位聚合物。发现这些配位聚合物（CP）中的三个具有2D网络，而其中一个包含3D网络。Cd（II）中心展示了连接二羧酸盐和配体的双金属和三金属二级建筑单元。考虑到配体中富电子部分的存在，CP显示出高发光。CP的这种发光特性已被用于分别从苦味酸和铁离子的0.69μM（0.16 ppm）和1.29μM（0.52 ppm）的水溶液中检测硝基芳族化合物和Fe（III）离子。此外，所有CP均表现出吸附染料如亚甲基蓝的倾向，而曙红-Y仅被四个CP之一吸附。